Real Madrid winger Angel di Maria has been linked with a move to Manchester United

Jorge Mendes claims his client may not want to leave Real Madrid in the summer, despite interest from former club Manchester UnitedReuters

Cristiano Ronaldo's future at Real Madrid would appear to be increasingly uncertain, following comments from his agent, Jorge Mendes. The Portugal international has a phenomenal goal scoring record at the Santiago Bernabeu, with 197 strikes in 195 games. And with six games still to go in the season, he will almost certainly finish with over 200 goals for the Spanish giants.

However, the 28-year-old is believed to be unhappy in the Spanish capital and although the direct furore his infamous "I am sad" statement caused last year has died down, he has yet to sign a new contract with the club. Ronaldo's present deal expires in 2014 and although club president Florentino Perez is confident of an agreement, talks have yet to be opened.

"I don't know. Ronaldo would be an asset to any of the best teams in the world. We'll have to wait and see, he's at Real Madrid and I don't know if he wants to move. Maybe," Mendes told Radio Mana Mana Sport.

Sir Alex Ferguson is understandably keen on bringing Ronaldo back to Old Trafford and is believed to be working on a £80m player/cash deal involving Nani (although Madrid are believed to prefer Javier Hernandez).

"Paris Saint-Germain is a possibility. With strong players, it is normal that big teams are interested," the super agent explained.

Mendes also represents a number of other Real Madrid stars, including coach José Mourinho. And among those expected to leave in the summer clearout is Argentina winger Angel di Maria, who has reportedly been offered to United.

Di Maria to Italy

The 25-year-old di Maria is also believed to be a target for a Serie A champions Juventus, according to talkSPORT. However, the Bianconieri are likely to be disappointed, after Mendes ruled out a move to Italy.

"It's hard to see him going to Italy. The transfer would require a significant amount of money, and Italian teams don't spend like they used to," the Portuguese agent reasoned.